duk.tw - robtex.com
duk.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:2c69🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:c6ba🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.44.105Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.198.186🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | chad.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b52🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c152🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2152🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| A | 108.162.193.82🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| A | 172.64.33.82🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| A | 173.245.59.82🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | chad.ns.cloudflare.com | ||||||
| NS | dora.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c06c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:206c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 108.162.192.108🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 172.64.32.108🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 173.245.58.108🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.44.105, 172.67.198.186 | ||||||
| IPv6 hints | 2606:4700:3031::6815:2c69, 2606:4700:3035::ac43:c6ba | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=102, name=cloudflare-ech.com | ||||||
| SOA | chad.ns.cloudflare.comdns@cloudflare.com serial=2399664893 | ||||||
tw
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.tw ⭐ | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.dns.tw | ||||||
| NS | c.dns.tw | ||||||
| NS | d.dns.tw | ||||||
| NS | e.dns.tw | ||||||
| NS | f.dns.tw | ||||||
| NS | g.dns.tw | ||||||
| NS | h.dns.tw | ||||||
| SOA | a.dns.twsnw@twnic.net.tw serial=2010998907 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSchad.ns.cloudflare.com2026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
●NSdora.ns.cloudflare.com2026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
●A104.21.44.1052026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
●A172.67.198.1862026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
●A2606:4700:3031::6815:2c692026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
●A2606:4700:3035::ac43:c6ba2026-03-14 → 2026-04-06 · 2 obs
● 2026-04-06 23:06:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | d.dns.tw, g.dns.tw, c.dns.tw, h.dns.tw... | - |
| duk.tw | chad.ns.cloudflare.com, dora.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.82
NS records: chad.ns.cloudflare.com, dora.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duk.tw (unsigned zone)
⏱️ Timing
Total: 792ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.44.105, 172.67.198.186 |
| AAAA | 2 | 2606:4700:3035::ac43:c6ba, 2606:4700:3031::6815:2c69 |
| NS | 2 | chad.ns.cloudflare.com, dora.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | chad.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
duk.tw maps to four IP numbers: 2606:4700:3031::6815:2c69, 2606:4700:3035::ac43:c6ba, 104.21.44.105 and 172.67.198.186.
Other host names, for instance tech-informatique.fr, vrodu.ru, mammaesperta.it, wscasia.com.my and tczdh.cn share IP numbers with duk.tw.
Name Servers
Two name servers chad.ns.cloudflare.com and dora.ns.cloudflare.com handle delegation for duk.tw.
duk.tw uses the same name server setup as other domains, for example betvom.com, pana-organic.com, 1winindir.com, melbet-giris.net and 1wintr.net.
duk.tw partially shares name servers with other domains; examples include edusynovia.com, ericsonsobrinho.com, nvsanj.com, hetrickins.com and eissworld.com.
These name servers are often used with the name servers nina.ns.cloudflare.com and cecelia.ns.cloudflare.com.
Host names with six IP numbers: chad.ns.cloudflare.com points to: 2606:4700:58::adf5:3b52, 2803:f800:50::6ca2:c152, 2a06:98c1:50::ac40:2152, 108.162.193.82, 172.64.33.82 and 173.245.59.82; dora.ns.cloudflare.com points to: 2606:4700:50::adf5:3a6c, 2803:f800:50::6ca2:c06c, 2a06:98c1:50::ac40:206c, 108.162.192.108, 172.64.32.108 and 173.245.58.108.